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Brazilian Archives of Biology and Technology

versão impressa ISSN 1516-8913versão On-line ISSN 1678-4324


BENASSI, Guilherme; CORREA, Guilherme Augusto Simões Francischini; KLUGE, Ricardo Alfredo  e  JACOMINO, Angelo Pedro. Shelf life of custard apple treated with 1-methylciclopropene: an antagonist to the ethylene action. Braz. arch. biol. technol. [online]. 2003, vol.46, n.1, pp.115-120. ISSN 1516-8913.

Custard apple (Annona squamosa L.) presents very short storage life at room temperature, in part due to heavy losses in firmness. This process is associated with the production and action of the hormone ethylene. In order to retard the ripening evolution in custard apple, fruits were treated with the competitive ethylene antagonist 1-methycyclopropene (1-MCP) at concentrations of 0, 30, 90, 270 or 810 nL L-1 for 12 h at 25oC and then stored at 25oC for four days. The soluble solids content (SSC), firmness and percentage of ripe fruits (firmness < 0.5kg) were determined during the experimental period. There were no differences among treatments as to the SSC. Fruits treated with 810 nL L-1 of 1-MCP showed higher firmness than the control fruits. Both , non-treated or treated fruits with 30 or 90 nL L-1 ripened faster than fruits treated with 1-MCP at higher concentrations.

Palavras-chave : Ripening; storage; firmness; Annona squamosa.

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